NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Basma Al Nahlawi, M.D.

Rheumatology Physician in San Marcos, CA · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144455262

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Registry record

Entity type Individual (Type 1)
Name Dr. Basma Al Nahlawi
Credential M.D.
Sex Female
Practice address San Marcos, CA, 92078
Phone (760) 707-6765
Fax (760) 736-8092
Enumeration date May 19, 2009
Last updated in NPPES Mar 23, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License A115924 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
CB257814 Other CA MEDICARE PTAN

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Basma Al Nahlawi's NPI record?
Cross-check NPI 1144455262 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1144455262 active?
Yes, as of the latest NPPES snapshot, NPI 1144455262 is active (record last updated 2023-03-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-23.